Nick Holywell-Walker is a British musician best known as the touring keyboard player for English post-punk band Killing Joke, beginning in 1994. He left in 2004 to concentrate on his own projects. A s
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561e695960af9110e34c71734b0831c56673931d2797d63603ad3b591b567b39. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95621468-235e-4f85-a44d-fa3d26ea93df.json and https://artists.proofprofile.net/proofs/artist/95621468-235e-4f85-a44d-fa3d26ea93df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).